multiple source support

HISTORY.txt

@@ -1,3 +1,5 @@
+3.5.0
+ - Fully support multiple sources in Pipfile. 
 3.4.2
  - Attempt installing from all sources in Pipfile.
  - Fix bug with accidental deletion of Pipfile contents.

pipenv/cli.py

@@ -566,12 +566,7 @@ def pip_install(package_name=None, r=None, allow_global=False):
 
 def pip_download(package_name):
     for source in project.sources:
-        cmd = '{0} download "{1}"  -i {2} -d {3}'.format(
-            which_pip(),
-            package_name,
-            source['url'],
-            project.download_location
-        )
+        cmd = '{0} download "{1}"  -i {2} -d {3}'.format(which_pip(), package_name, source['url'], project.download_location)
         c = delegator.run(cmd)
         if c.return_code == 0:
             break